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JEE Main 2005 (AIEEE) · P-V Diagrams & Cyclic Processes

P-V Diagrams & Cyclic Processes question from JEE Main 2005 (AIEEE)

Q89JEE Main 2005 · AIEEEEasy

P-V Diagrams & Cyclic Processes

A system goes from $A$ to $B$ via two processes $I$ and $II$ as shown in figure. If $\Delta U_1$ and $\Delta U_2$ are the changes in internal energies in the processes $I$ and $II$ respectively, then

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Answer: (b)

Internal energy is a state function: $\Delta U$ depends only on the initial and final states.
Both processes start at A and end at B.
So $\Delta U_1 = \Delta U_2$ , answer (b).

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